package com.gdth.utils;
import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

public class ContentUriUtil {  
    /** 
     * Get a file path from a Uri. This will get the the path for Storage Access 
     * Framework Documents, as well as the _data field for the MediaStore and 
     * other file-based ContentProviders. 
     * 
     * @param context The context. 
     * @param uri The Uri to query. 
     * @author paulburke 
     */  
    @SuppressLint("NewApi")
	public static String getPath(final Context context, final Uri uri) {  
  
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;  
  
        // DocumentProvider  
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {  
            // ExternalStorageProvider  
            if (isExternalStorageDocument(uri)) {  
                final String docId = DocumentsContract.getDocumentId(uri);  
                final String[] split = docId.split(":");  
                final String type = split[0];  
  
                if ("primary".equalsIgnoreCase(type)) {  
                    return Environment.getExternalStorageDirectory() + "/" + split[1];  
                }  
  
                // TODO handle non-primary volumes  
            }  
            // DownloadsProvider  
            else if (isDownloadsDocument(uri)) {  
  
                final String id = DocumentsContract.getDocumentId(uri);  
                final Uri contentUri = ContentUris.withAppendedId(  
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));  
  
                return getDataColumn(context, contentUri, null, null);  
            }  
            // MediaProvider  
            else if (isMediaDocument(uri)) {  
                final String docId = DocumentsContract.getDocumentId(uri);  
                final String[] split = docId.split(":");  
                final String type = split[0];  
  
                Uri contentUri = null;  
                if ("image".equals(type)) {  
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;  
                } else if ("video".equals(type)) {  
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;  
                } else if ("audio".equals(type)) {  
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;  
                }  
  
                final String selection = "_id=?";  
                final String[] selectionArgs = new String[] {  
                        split[1]  
                };  
  
                return getDataColumn(context, contentUri, selection, selectionArgs);  
            }  
        }  
        // MediaStore (and general)  
        else if ("content".equalsIgnoreCase(uri.getScheme())) {  
  
            // Return the remote address  
            if (isGooglePhotosUri(uri))  
                return uri.getLastPathSegment();  
  
            return getDataColumn(context, uri, null, null);  
        }  
        // File  
        else if ("file".equalsIgnoreCase(uri.getScheme())) {  
            return uri.getPath();  
        }  
  
        return null;  
    }  
    /** 
    ** 
     * Get the value of the data column for this Uri. This is useful for 
     * MediaStore Uris, and other file-based ContentProviders. 
     * 
     * @param context The context. 
     * @param uri The Uri to query. 
     * @param selection (Optional) Filter used in the query. 
     * @param selectionArgs (Optional) Selection arguments used in the query. 
     * @return The value of the _data column, which is typically a file path. 
     */  
    public static String getDataColumn(Context context, Uri uri, String selection,  
            String[] selectionArgs) {  
  
        Cursor cursor = null;  
        final String column = "_data";  
        final String[] projection = {  
                column  
        };  
  
        try {  
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,  
                    null);  
            if (cursor != null && cursor.moveToFirst()) {  
                final int index = cursor.getColumnIndexOrThrow(column);  
                return cursor.getString(index);  
            }  
        } finally {  
            if (cursor != null)  
                cursor.close();  
        }  
        return null;  
    }  
  
  
    /** 
     * @param uri The Uri to check. 
     * @return Whether the Uri authority is ExternalStorageProvider. 
     */  
    public static boolean isExternalStorageDocument(Uri uri) {  
        return "com.android.externalstorage.documents".equals(uri.getAuthority());  
    }  
  
    /** 
     * @param uri The Uri to check. 
     * @return Whether the Uri authority is DownloadsProvider. 
     */  
    public static boolean isDownloadsDocument(Uri uri) {  
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());  
    }  
  
    /** 
     * @param uri The Uri to check. 
     * @return Whether the Uri authority is MediaProvider. 
     */  
    public static boolean isMediaDocument(Uri uri) {  
        return "com.android.providers.media.documents".equals(uri.getAuthority());  
    }  
  
    /** 
     * @param uri The Uri to check. 
     * @return Whether the Uri authority is Google Photos. 
     */  
    public static boolean isGooglePhotosUri(Uri uri) {  
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());  
    }  
}